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OpenStudy (anonymous):
-3x+3y=3, 3x+y=9 please solve by using the elimination method
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OpenStudy (anonymous):
-3x+3y=3, 3x+y=9 please solve by using the elimination method
OpenStudy (tkhunny):
Add them. -3x + 3x = 0 3y + y = 4y 3 + 9 = 12
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